Bearing.



E. I. KUETTIIER.

APPLICATION FILED MAYIS. I9Il- RENEWED IAN. 7. I919.

Patented Apr. 1, 1919.

2 SHEETS-SHEET I.

E. J. KUET'TNER.

BEARING. APPLICATION FILED MAYIS, 1917- RENEWED JAN. 7.1919.

1,299,357. PatentedApf.1,1919.

2 SHEETS SHEET 2.

INVENTOR WITNESSES UNITED STATES PATENT OFFICE.

EDWIN J. KUETTNER, 0F RALEIGH, NORTH CAROLINA.

' BEARING.

Application filed May 15, 1917, Serial No. 168,874. Renewed January 7, 1919.

To all whom it may concern:

Be it known that I, EDWIN J. Kun'r'rxnn, a citizen of the United States, residing at Raleigh, in the county of \Vake and State of North Carolina, have invented new and useful Improvementsin Bearings, of which the following is a specification.

My invention relates to bearings and relates particularly to bearings in which a bushing of bearing metal is secured within a main bearing housing.

.' housing are moved out of registry with each I and particularly In bearings of this type it is generally the practice'to press the bushing within the housing and then secure the bushing against turning in the housing by means of a dowel pin engaging holes in the bearing housing and the bushing. In the use of bearings of this type the varying strains upon the bushing soon pound the'same out of shape and the bushing becomes loose within the bearing housing. When the bearing is loose within the housing all of the strain tending to rotate the bushing within the housing is placed upon the dowel pin, which is soon sheared off, and the oil holes of the bushing and the communicating oil holes of the other whereby oil is prevented from working upon the bearing surface of the bushing, and the bushingis soon destroyed. I

My invention has for its primary object to provide a means for securing a bushing within a housing which may be adjusted from time to time to constantly retain the bushing in tight engagement with the hous- 1n it further object of my invention is to provide a split bushing and a'wedge engaging the split edges of the bushing and adjustably secured upon the bearing housing whereby the bushing may be always kept in tight engagement with the housing.

Another object of my invention is to provide a split bushing and a wedge engaging the opposing edges of the bushing adjustaoly secured upon the bearing housing, the housing having a keyw the small end of he wedge whereby the bushing is not only expanded into a tight engagement with the bearing housing, but in addition is rigidly held against rotation within the bearing housing.

WVith these and other objects in view which will be hereinafter fully described pointed out in the claims, the invention consists in the novel construc- Specification of Letters Patent.

- opposing edges.

y whichis engaged by Patented Apr. 1, 1919.

Serial No. 270,097.

Fig. i is a partial vertical section of the same in side elevation,

Fig. 5 is a partial vertical section in side elevation showing the manner in which shims are inserted between the wedge and the opposing edges of the bushing after the bushing has been in long service.

Like characters of reference indicate like parts in the various views.

In the drawings 1 deslgnates a locomotive connecting rod which has a bearing housing 2 at its end. The housing 2 has a transverse circular aperture therein in which is fitted a bushing 3. The housing 2 has an oil cup at formed on the upper side thereof, and an oil hole 5 leads from the bottom of said oil cup into the transverse aperture of the housing, and an oil hole 6 formed in the bushing 3 communicates with said oil hole 5 and leads therefrom'to the inner or bearing'surface 7 of the bushing. Grooves 8 are formed upon the bearing surface 7 of the bushing and communicate with the oil hole 6 to distribute'the oil about the bearing surface 7 of the bushing as is the usual practice, see Fig. 4.

The bushing 3 is split transversely at the lower side thereof, and the. opposing edges thereof converge toward each other from the inner surface of the bushing, as desig nated at 9, there being a space between said formed in the bearinghousing 2 and is disposed T in registry with the space between the convergent edges 9 of the bushing. This keyway has the sides thereof converging from the inner surface of the bearing hous ing to correspond with the convergent edges 9 of the bushing, as designated at 1 1', and

.A transverse keyway 10 is the bottom thereof converges downwardlyfrom the sides of the housing toward the center thereof. as designated at 12. A boss 13 is formed upon the outer surface of the bearing housing 2 immediately below the keyway l0, and a radially disposed hole 11 leads from the center portion of the bottom the center, as designated at 17, to correspond- With thehottorn 12 of the kcyway 10. A shank 18 is formed on the small end of the wedge and extends downwardly from the center thereof through. the hole 14, anda nut 19 is screw threaded upon the lower end of said shank and engages the boss 13h) clamp the Wedge in tight engagement with the convergent edges 9 of the bushing, A look nut is screwthrcaded upon the shank i8 to lock the nut 19 in any adjustment, and a cotter pin 21 engages a transverse hole formed at the lower end of the shank 18 to prevent either the; nut 20 or the nut 19 from working; off of the shank= I In assemblingthe above described hushing Within the housing, the bushing 3 is pressed into the housing with the space between the edges 9 in registry with the keyway 10. of the housing. The shank of the wedge 15'is then inserted into the hole 1i and the nut 19 screw threaded thereon to bring the sides 16 of the wedge into tight engagement with the respective edges 9 of the bushing. This action serves to expand the bushing Within the housing and to hoid the'sarne into tight engagementtherewith in addition to this the lower portion of the wedge engages the keyway l0 and serves to prevent side movement of the wedge there- 7 by aifording a solid resistance against the bushing 3 turning within the hearing housing.' As above described the sides 11 of the keyway 10 are tapered to correspond with the side 16 of the wedge, and in the event that the bushing is so pounded out so that the Wedge no longer clanips the bushing; in tight engagement with the housing, the wedge may be drawn down into the keyway so that the i-ower portions of the sides 16 thereof tightly engage the sides 11 of the keyway wherebygthe bushing may he held against rotation in the housing pending permanent repairs. It Will be noted at this point that thew edge 15 has a relatively iarge surface in engagement with the ireyway 10 whereby the strains upon the wedge are easily resist-- ed without danger of wedge being sheared off. 'By reason of the fact that the bottom 12 of thekeywa v is tapered sown- W-ardly from the sides of the housing toward the center thereof, the housing; is not weaka en'ed by the'keyway tlzrerein, and the shank l8,'extending from the iowenmo'sc point of the wedge, 1s not subgect to the strains to which it would, besuhject if the wedge were I shorter and the ireyway not so deep at that point.

Screw threaded holes are formed in the side edges of the bushing to facilitate the removal or" the bushing; from the housing. and short "tapered keyways 22" are forined on the surface of the housing 2, on either side ofthe keyway 10 into which wedges may heinsertcd to contract the bushing 3 when removing the same from the housing, see Fig: 2,

It will. be noted that the wedge 15 is not as wide as the bushing 3, the bushing overlying the wedge at either end, see Fig. 2,

and as the wedge is turned down into place it crushes the corresponding surfaces of the edges 9. slightly and forms shoulders at either eno of the wed 'e. This prevents side movement of the bushing within the housing, even though the bushing may become loosened within-the housing. The side edges the wedge are diverged upwardly and inwardly, as designated at 24, and should the nut 19 become loosened the tapered fornation of said edges will engage the respective shoulders 23 to prevent the wedges thereof working upwardly and contacting" the hearing surface of a crank pin in the hearing, and perhaps injuring the same. v

When the bushing 3 is pounded to such an, extent that the wedge 15 no longer enga es the opposing edges shims 25 may he inserted between the engaging sides of the wedge and the opposing edges 9 so that the wedge I'EIztjl he again drawn'down to tightly engage the bushing with the housing:

""iavin thus fuiiy described. my invention, 1 claim 1. In a device of the character described,

- the coinhination with a hearing housing, of

the con'ihination with a hearing housing, of

a split bushing in saidhousing and having the opposing ends thereof convergent, a wedge engaging said opposing ends to tightly clamp said bushing in engagement with said housing, and means for retaining said wedge in proper engagement with said opposing ends.

'3. In a device of the character described, the combination with a hearing housing, of a split bushing in said housing and having the opposite ends thereof convergent, a wedge engaging said opposing ends to i htly chimp said bushing in engagement with said housing, and means associated with said housing for retaining said Wedge in proper engagement with said opposing ends.

44 In a device ofthe character described, the coin 7i nation. with a hearing housing hava radiaily disposed hole therein, of a saidopposing v clamp said split bushing in'said housing and having t e opposing endsthereof convergent toward each other from the inner surface of the bushing, a wedge tapered to correspond with ends, a shankextending from the small on of said wedge and engaging said hole and a nut screw threaded upon said s'fiank' exteriorly of said housing to I wedge in tight engagement with said opposing ends of the bushing.

5. 'In a device of-the character described,

the combination with a bearing housing havinga keyway formed on the inner surface thereof and having a radially disposed hole leadin from said in sai housing and having the opposing ends thereof convergent toward each other from the inner surface of the bushing, a

wedge tapered to correspond with said oposing ends, the small end of said wedge ein adapted to engage said -keyway, a sha extending from the small end of said wedge and engaging said-hole, and a nut screw threaded upon said shank exteriorly of said housing to clamp said wedge in tight engagementwith said opposing ends of the.

- vbushing.

6. In a. device of the character described, the combination with a bearing housing having .a keyway having the bottom thereof tared downwardly from the sides of the ousing andhaving a radially disposed hole leading from the center of said keyway, a split bushing in said housing and having t e opposing ends thereof converging toward caplet this-patent may be obtained for -ter small end of the wedge and extending ey way, of a split bushing each other from the inner surface of the bushing, awedge tapered to correspond with said opposing ends the ends of the small end of said wedge being tapered downwardly from the side ends thereof toward the cena shank extending from the center of the bushing and having the sides thereof diverging upwardly from the small end of the wedge, and means associated with said housing and having connection with said wedge to clamp said wedge in tight engagement with said bushing. v

i 8. In a device of the character described,

the combination with a bearing housing, of

a split bushing in said housing having convergent opposing ends, and means adjustable through the housingand engaging said opposing ends to tightly clamp said bushing in engagement with said housing.

In testimony whereof I affix my signature.

I EDWIN J. KUETTNER.

five cents each, by addressing the Commissioner of ratents, Washington, D. 0. 

